I have botherd Kevin again with a new pic.
(I hope he posts that one too)

This (coming pic) is a combination of GI and FG.

The outer rendering is GI.
The inner rendering is Final Gathering and GI.

The two shadings differ greatly (light-energy is lowered very much, when including the FG settings to GI).

The FG shading is nice, but has one strange thing, and that is the too-bright(?)-area under the top slab, it has no shadow at all it seems.
--------------------------------------------------------------------
I study architecture and I'll spend the next hours now to build a house i never got around to, from a previous project at school. I'll even try to texture it
:banana: although I'm not good at that.